Fountain-pen.



W. L. CHAPMAN. FOUNTAIN PEN.

APPLIGATION FILED MAR. 26, 1912.

1,080,099 Patented 1330.2, 1913.

2 SEEETSSHEET 1.

W. L. CHAPMAN.

FOUNTAIN PEN.

APPLICATION FILED maze, 1912.

Patented Dec. 2, 1913.

2 SHEETSSHEET 2.

' w i/ime/aouz.

' the writingposition.

at right angles to Fig. 1.

-UNITED STATES hiA 'l ENT UFFICEL WILLIAM L. CHARBMAN, OF NEW YORK, N. Y.

FOUNTAIN-PEN.

T 0 (11140710721, it may concern Be it known that I, WILLIAM L. Sinai MAN, a citizen of the United States, and resident of the borough of Brooklyn, in the city of New York, State of New York, have invented certain new and useful Improvements in Fountain-Pens, (Case 1),) of which the following is a specification, accompanied by'drawings. I

The invention relates to fountain pens suitable for carrying in the pocket.

The invention provides an easily operated and reliable valve for opening and closing communication between the reservoir and the pen proper, so that this communication may be closed and dan ager or leaking obviated when the pen is notin use.

It also provides means for drawing ink into the reservoir of the pen from any convenient supply of ink without requiring filling devices separate from the lien.

Also, it provides a combined piston and rotary valve for opening and shutting the communication between the reservoir and the front of the pen and for drawing in the ink.

It also provides means by which the putting on and taking off of the cap of the pen may cause the opening and closing of the communication between the reservoir and the front of the pen, so that it shall be closed when the cap is on the front'of'the pen and open when the cap is on the rear end of the pen.

lVhile I prefer to combine all these features of the invention, it is possible to use some of them without the others, as will be apparent from the following description.

Figure 1 shows in longitudinal sectional View a preferred embodimento-i the invention in a fount-ain pen. the parts being in Fig. 2 is a longitudi nal section of the front end of the barrel. of the pen at right angles to Fig. 1. Fig. 3 is a side View of the rear end of the pen without the cap. the parts being in carrying po sition.

same.

Fig. 4 is a rear end view oflhe Fig. 5 is a cross section of the cap Fig. 6 is a view looking into the open end of the cap. Fig. 7 shows a modification wherein the rotary valve is actuated from the front end of the pen. Fig. 8 a partial section taken at right angles to Fig. 7. Fig. 0 is an end. view of the same. Fig. 10 is a sectional view of the cooperating cap for same.

Specification of Letters Patent.

Application filed March 26, 1912.

head c is in fact a rotary valve.

Patented Dec. 2, 1913.

Serial No. 686,293.

Referring first to Figs. 1 to 6 of the drawings, the barrel 6 which contains the reservoir chamber is fitted to receive the slide piston or head c. The barrel is closed at the rear end by a packingring (Z, preferably of high grade cork, which is held between two screw-threa(led, perforated disks .01' heads f screwed into the rear end of the barrel Z). Through this packing (Z runs the rod 9, which is a tubular rod forming a piston rod, filling tube and valve stem, as will presently appear. The rod g has a gently reduced neck g which is normally, except when the pen is being filled, within the body of the packing (Z, allowing the packing to act elastically on the reduced neck and form a spring; means for holding the rod 9 against being accidentally drawn out or displaced longitiulinally. The rear end of the rod 9 terminates in a head it, which has provision for rotating it and is also provided with a screw plug valve for closing the rear end of the filling tube. This plug has. preferably a conical valve surface, as shown, that seats in the head la, and a hexagonal nutlike portion j which fits a corresponding recess j in the end of the cap and permits the cap to be used as a wrench, for screwing the plug valve 7' into and out of place in the head it. The forward end of the tubular rod 9 is secured to the piston or head 0, prefcrably by means of a flange 7c, in order that the rotation of the tubular rod 9 may turn the piston or head 0, which constitutes a rotary valve. The head 0 is provided with ink duct-s c, c, which register with channels or ducts 0 when in writin position, so to allow the ink to flow Irom the reservoir through the ducts c to the channels 0 and thence through the duct 0'' to the pen proper. "he ducts 1: may be L-shaped, as shown. lcadhrc from the reservoir to the periphery, and the duct 0 may be Tshaped leading From the periphery of the valve to the pen proper.

The pen proper is mounted in the forward end of the head, valve or piston wand receives ink from the duct 0 in any approved manner. The channels 0' in the wall oi the barrel Z: are of such length and position as shown that when the head or valve 0 is rotated preferably ninety degrees the channel is closed and c nununicalion shut,oil' between the rcscrwiir and the point of the pen. it will now be seen that the in order 1 ill Y, I, if not already so, lie-tow piston T ie to mlar piston re 1 being thrust too far. on

r the cap to lock it on the at. J

to cause proper actuation of the valve by the were putting on and taking oil of the cap of the pen, I provide the rear end of the barrel of the pen with an interrupted flange 1 huving two oienings or intrru r tions Z", and the cap e is provided with correrponding teeth m which run puts through the openings 15 when the cop is placed on the rear end, and. then by turning the cop the teeth 1%- pass behind the {hinge l and come to rest against the stops m. Thus, the cap is secured in place. The head it provided with an interrupted flange 71, the two interruptions or openings of which correspond and register with the openings'l when the rotary valve 0 is,closed end the pen in carrying )osition with its cap on the front end. T e cup 6 is also provided with another pair of internally projecting teeth 9 in line longitudinally with the teeth m, and which enter and lie in the open ings of the rotary flan e p when the teeth in pass through and be ind the flange Zof the barrel. In order to revent the cap to t. e rear end of the pen, stops or teeth a? are provided, which strike against the rotiry flange p when the teeth g are place in the openings 1p. 1*: will now be seen that in utting tie cup on the rear end of the pen t e teeth m have to find the openings and these latter have to come into registration with the-openings the teeth m the flange Z. Then, upon turning on, the teeth a e willturn until they meet t e stops m, due ing which the teeth ,1 turn. the flange p and head It a quarter turn, thereby turning the rotary valve 0 and openii'ig the ink ducts at the front of the en, so that the is read for waiting, 3. evorsely, when the cap is to on oil the rear end, it will he seen that the openings 2 are brought into line "with the openings to permit the drawing; o. the cap. When the can is drawn oil, it leaves the ink duets at i ie front of the pen closed. It is also, of course, possible to turn the head h directly by the fingers, if desired.

In fillin the en, the head 0 o ierates as a provided with side perforation 9'' near its forward end, allowing the ink to pass from the rear and of the tubular rodinto the res ervoir. When it is desired to fill the pen, the cap e is used to unscrew the plug valve 9' by means. of its hexe' ona-l 'end j, and then the rear end of the ling tubefiorme'd by the iston rod 9 is 0 en.. The head It is then Inly asped an drawn rearward, drawing out tfifa rod '9. The reduced neck of the rod, in cofiperation with tlntipmz-k mg d, allows this to occur, although it pre vents'suoh a movement accidentally. The rod 9 is drawn out as far as the .pieton'c can pass it of ,7 into the reservoir.

tion, is provided with do ing too far on to the pen.

weopne will allow, and its 0 en rear end at the head it IS thrust into a y of ink in an ink well or bottle or other convenient reccptael whereupon, by pressing down the barrel an pnshin home the iston rod, which is now the filling tube g, rear of the piston draws in the ink from the tube, so that it flows out of the perforation Next, the rear end of the pen should be rinsed and the screw plug 5 screwed into-place, c'losin the filling tube. Thereupon, b putting t e cap a in place on the rear on of the pen, the rotary t 0 auction created in the valve will be opened and the pen made ready to write,

In the modifications shown in Fi 7 to 310, inclusive, the rotary valve an head which carries the aen proper rotates but does not reciproca lo itudinally. The rotary valve or head a, sh n partly in m as lx'efore communicating with the ducts 05! in the Will of the pen barrel, a single "if-shaped duct 0' is a ropriate.

he valve or head a is preventc in the wall of the rreli shouldered as shown to rest against the flange 8', and the projecting and l!!! screwed upon it a not a which rests against the opposite side of the flange l so that the head 8 cannot move longitudihell; in either direction. head 5 is provided with a flange t intemgt' ed at two points by 0 nings t. The r ward end of the barre is provided with an interrupted flange u, opei'iings in which register on one side with the openings .t', as shown, when the pen in in writing position and the ink ducts of theyalve are open. Preferably, instead of having the flange similar to the flange 1 descrihed above, theflange u has helical rear igurfzieesto act as cams in securing the cap tightly in place by the wed 'ng of the flu u between the teeth w an a: on the insi e of the cap. The on u is provided with opposite internal teetli 10 having an incline surface 10 in position to Cullpfil'fllfl with the cam surfaw of the flange u and draw the ca tightly in place. These teeth 10 are of widt to pass through the openings in the flange u. The cap is also 'provided with two opposed teeth a: of width and position to approximately fit and occupy the opening! -1n the (la e t when the cap is put on; but these feet x are of too great width to pass through the flange u, and, therefore, act as stops for the cap, preventing it pan- The two parts of the flange u-wedge between the teeth 10 and as when the ca is put on and turned until it wedges, whic should occur in about a quarter turn.

After writing with the pen the cop should but instead of two dud! 0',

rom lon gitudinal movement b means of a flange a'f' The head .in

The front of the interruptions or be put on, as follows: Push the cap on until the teeth u.- strike the flange t and then turn lefthandedly until they find the openings t, continuing the turning until they find the opening in the flange a, whereupon it will be seen that. the flanges will register as shown in Fig. 7 and the teeth :0 in the openings t come to rest against the flange it. Then the cap may he tumed righthandedl and the teeth 21' will wedge beneath the flange 11. This turning of the cap to cause the wedging will also cause the tlangc'zf to be turned by the teeth .22 from the position shown in Fig. 7, closing the valve ducts so that ink cannot pass from the reservoir to the frontv of the pen. Reversely, in taking ofi' the cap, it is only necessary to turn itlefthandedly until the teeth 11 find the openings in the flange 11 and allow it: to be pulled directly oft, leaving the rotary valve in the position shown in Fig. 7. If no displacement of the valve occurs, it will be seen that when the cap is again applied. it will go on easily without much feeling around for the opening in the flange it.

It will be apparent from comparison of the first and second forms'of the invention described that considerable modification of detail will readily suggest itself to those skilled in the art, and that some features of the invention may be used without others where all the objects are not carried out in a single pen.

I do not claim broadly the piston and filling tube inthis application, as these are the subject-matter of a prior application filed by me. 1

What I claim is:

1. A fountain pen having a rotary valve for opening and closing the front end of the rcservoir,a piston combined with said valve. and a combined valve stem, piston rod and filling tube, adapted to be drawn out at the rear end of the reservoir, the said stem having means for turning it. means for relcasably holding it longitudinally and means for opening and closing the end of the filling tube.

2. A fountain pen having a rotary valve for opening and closing the front end of the reservoir, a piston combined with said valve, and a combined valve stem, piston rod and filling tube, adapted to be drawn out at the rear end of the reservoir, the

'jections or teeth one of said stem and the cap of the pen being pro- 86 vided with cooperating means for turning the stem by movement of the cap.

3. A fountain pen having a rotary valve for opening and closing the front end of the reservoir, a piston combined with said valve, and a combined valve stem, piston rod and filling tube, adapted to be drawn out at the rear end of the reservoir, a cap having means for securing it. to the pen by turning it and means for automatically turning the stem by the turning movement of the cap.

4. A fountain pen having a rotary valve for opening and closing the front end of the reservoir, a piston combined with said valve, and a combined valve stem, piston rod and filling tube. adapted to be drawn out at the rear end of the reservoir.

5. A fountain pen having a reservoir and a. rotary valve which coacts with ink (l11cts"- in the reservoir wall, a combined filling tube and valve rod. valve actuating means comprising a rotary flange having one or more openings, a flange on the barrel having one or more openings. a cap having prowhich is adapted to pass said flanges and to be turned to secure the cap and another of which engages with the rotary flange during such action to 0pcrate the valve.

6. A fountain pen having an ink duct and a valve for controlling the passage of ink at the forward end of the pen. and a cap -provided with means engaging by rotation pen barrel with cooperating means on the for securing it thereto, said cap also having other means for automatically shutting and opening the valve by the motions of securing and removing the cap.

7. A fountain pen having a rotary valve provided with a rotary flange having one or more openings. and a cap provided with one or more teeth adapted to engage such openings, said pen having means for securing the cap by turning it while said teeth are engaged.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses this 20th day of March, 1912. \VM. L. CHAPMAN. \Vitnesscs:

HAROLD BINNEY, AUGUSTA Pscnnnma. 

